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Zedler – Institut für Fahrradtechnik und -Sicherheit GmbH Technology and Passion for Bicycles TESTING SERVICES Performance TESTING SERVICES | PORTFOLIO ZEDLER TESTING SERVICES | PERFORMANCE DEAR CUSTOMER, Thanks a lot for your interest in Zedler testing services. With precise, innovative and reliable testing systems we provide tailor-made solutions for nearly any testing tasks in state-of-the-art mechanical testing of bicycles and bicycle components. For many years, we have been one of the leading suppliers of testing services and systems that you can find in the testing laboratories of the trend-setting bicycle manufacturers and magazines. The testings of our PERFORMANCE series are mainly designed to test bicycle frames, forks and com- ponents for stiffness and geometry. They allow precise statements about the riding behaviour without time consuming assembly and test rides in different terrains. Measurement results of the PERFORMANCE testing systems series put into numbers riding char- acteristics of bicycles and their components. You cannot only measure the frameset’s resistance to dangerous wobbling during a fast ride or the swaying of trekking bikes under load, but also the bottom bracket stiffness to entirely convert the rider’s power during strong pedalling into propul- sion. The comfort that characterizes the frame and the fork is measured in millimetres of the spring travel. The tests of the lateral wheel and fork stiffness not only indicate whether the brake pads of bicycles with rim brakes drag along the rim, but also whether the front wheel directly responds to the rider’s steering pulse. Due to the faster moved e-bikes/pedelecs, the criteria of active driving safety, the bicycle performance, are increasingly important beyond the field of sports bicycles. With our stiffness measurements you are in a position to check whether the quality of a fabrication batch of carbon components fully complies with your specifications and to get an idea of the deviations. The testings of the PERFORMANCE series deliver accurate and thus absolutely comparable measure- ments that even Europe’s leading bicycle magazines take as basis for evaluation. We are proud to report that the values obtained on our machines are often taken as reference values. I am absolutely confident that our testing results will be a valuable support in the development of your products and wish you good luck and success. I welcome your feedback. Feel free to send us your inquiries, improvement suggestions or criticism. Dirk Zedler, graduate engineer Managing Director FRANK LEYRER | Head of Testing Systems JÜRGEN HAAG | Testing Technician SEBASTIAN MARTIN | Testing Technician – Institut für Fahrradtechnik und -Sicherheit GmbH © 2 /28 ZEDLER TESTING SERVICES | PERFORMANCE YOUR ADVANTAGES AT A GLANCE: Development-accompanying measurements that are comparable to the products of other market players/competitors Measured values of testing standards comparable to the values of the German magazines BIKE, E-BIKE, Freeride, TOUR and Trekkingbike No negative surprises in the case of magazine tests Communication with your suppliers or customers on the basis of measurements that are accepted worldwide The opportunity to produce consistent product quality due to sample checks As a result you have many satisfied customers with bicycles that have an excellent riding behaviour and an outstanding performance YOUR TEST REPORT INCLUDES: Measurement results gained from technically mature, reliable and calibrated Zedler testing systems made in Germany Depending on the component to be tested, benchmark charts comprising up to 500 data sets with products of many market players/competitors FURTHER TESTING SERVICES – SAFETY AND QUALITY: Besides the PERFORMANCE tests we offer further testing services in our laboratory: Framesets, bicycle assemblies and individual components can be tested with regard to overload, impact strength as well as fatigue behaviour. The newly developed bicycle testing systems simulate typical riding situations, special events and foreseeable inappropriate use and misuse in realistic clamping. To determine reasonable torque values and mounting specifications for assemblies instead of relying upon the instructions of the screw manufacturers, is a first, very important step towards the minimi- zation of failures in service. Further examinations and measurements comprise the entire field of “precision” and “bicycle fit” as well as coating tests and functional tests. TESTING SYSTEMS − SALE: We not only offer testing services in our company own testing laboratory in Ludwigsburg, but also supply the testing systems. Test report Benchmark charts Comparability Zedler – Institut für Fahrradtechnik und -Sicherheit GmbH Zedler – Institut für Fahrradtechnik und -Sicherheit GmbH – Institut für Fahrradtechnik und -Sicherheit GmbH © 3 /28 ZEDLER TESTING SERVICES | PERFORMANCE The classical Zedler-portfolio of PERFORMANCE testing comprises several static testing methods. These are to determine the stiffnesses the geometry the stiffness-to-weight factor (STW) 01 In addition, there are five PERFORMANCE-packages for frames and framesets PERFORMANCE-package mountain bike (frame, frameset) PERFORMANCE-package road bike frame PERFORMANCE-package road bike frameset PERFORMANCE-package trekking bike frame PERFORMANCE-package trekking bike frameset TESTING LKS | Head tube stiffness 02 03 04 TESTING STW | Geometry TESTING TLS II | BB stiffness TESTING KOM | Comfort stiffness 05 06 07 TESTING GST | Fork stiffness TESTING KST | Crank stiffness TESTING LRS II | Wheel – Institut für Fahrradtechnik und -Sicherheit GmbH © 4 /28 ZEDLER TESTING SERVICES | PERFORMANCE In the past years the Zedler institute developed NEW static PERFORMANCE testing methods. These are to determine the stiffnesses especially for e-bikes (pedelecs, EPAC) and full-suspension mountain bikes the geometry and wheel-load distribution the spring characteristic curves the wheel trajectory curve NEW In addition, there are two new PERFORMANCE-packages for since 2014 frames and framesets PERFORMANCE-package frame full-suspension MTB PERFORMANCE-package frameset full-suspension MTB PERFORMANCE-package pedelec and S-pedelec 08 09 10 BCS TEST | Central stiffness FKL TEST | Spring characteristic curve frame GKL TEST | Spring characteristic curve fork 11 12 13 ECS TEST | E-bike stiffness CST TEST | Pannier rack stiffness GEO II TEST | Geometry – wheel load – Institut für Fahrradtechnik und -Sicherheit GmbH © 5 /28 ZEDLER TESTING SERVICES | PERFORMANCE STW 02 TLS II TLS 03 KOM 04 PRECONDITIONS PRECONDITIONS COMPATIBILITY DETERMINE TO GST s mount derailleur and front hanger derailleur nism, saddleclamp, clampmecha tain bike19“).Headset, 57 cm,trekking bike20“-51cm,moun bike (inthecaseofroad height standard and e-bike/pedelec) city/trekking bike, road (MTB, systems wheelaxle rear bases withallstandard TOUR BIKE, and Trekkingbike oftheGerman magazines the standard to (ridingstability) according frames E A t he headtubestiffnessofbicycle upplied. very ll bicycle frames of ll bicycle frames 05 TESTING SERVICES LKS | | LKS SERVICES TESTING frame to be tested must be at mustbeat betested to frame KST 06 d ifferent wheel ifferent LRS II LRS 07 must be BCS - 08 - TESTING SERVICES FKL 01 Head tubestiffness 09 GKL 10 ECS 11 LKS CST 12 GEO II GEO 6 /28 13 01 LKS – Institut für Fahrradtechnik und -Sicherheit GmbH © LKS ZEDLER TESTING SERVICES | PERFORMANCE 01 TESTING SERVICES STW | Stifftness-To-Weight Factor STW 02 TLS II TLS 03 KOM 04 GST 05 TO DETERMINE TESTING SERVICES STW KST the head tube stiffness of bicycle 06 frames (riding stability) according to the standard of the German magazines BIKE, TOUR and Trekkingbike the STW-factor (stiffness-to-weight) II LRS 07 the standardized weight BCS 08 COMPATIBILITY 02 All bicycle frames of different wheel FKL bases with all standard rear wheel axle 09 systems (MTB, road bike, city/trekking and e-bike/pedelec) GKL 10 PRECONDITIONS ECS Every frame to be tested must be at 11 standard height (in the case of road bike 57 cm, trekking bike 20“ - 51 cm, moun- tain bike 19“). Headset, clamp mecha- CST nism, saddle clamp, derailleur hanger 12 and front derailleur mount must be sup- plied, as they are of major importance for the determination of the STW and the frameset weight, because they are GEO II GEO included in the frameset weight. 13 – Institut für Fahrradtechnik und -Sicherheit GmbH © 7 /28 ZEDLER TESTING SERVICES | PERFORMANCE STW 02 KOM 04 PRECONDITIONS PRECONDITIONS COMPATIBILITY DETERMINE TO GST be supplied. mount derailleur hanger andfront derailleur mechanism, saddleclamp, clamp bike19“).Headset, cm, mountain bike57cm,trekkingroad bike20“-51 (inthecaseof height standard be at and e-bike/pedelec) city/trekking bike, road (MTB, systems wheelaxle rear bases withallstandard bracket and bottom TOUR oftheGerman magazine the standard to according transmission) sets (power E A t t he system stiffness of frameset, cranks cranks stiffnessofframeset, he system stiffnessofframe bracket he bottom very ll bicycle frames of ll bicycle frames 05 TESTING SERVICES TESTING frame with fork to be tested must betested to withfork frame KST 06 d ifferent wheel ifferent LRS II LRS 07 must BCS TLS II| 08 - TESTING SERVICES FKL 03 09 BB stiffness GKL 10 ECS 11 TLS II CST 12 GEO II GEO 8 /28 13 03 TLS II 01 LKS – Institut für Fahrradtechnik und -Sicherheit GmbH © LKS ZEDLER TESTING SERVICES | PERFORMANCE 01 TESTING SERVICES | Comfort stiffness STW 02 TLS II TLS 03 KOM 04 GST 05 TESTING SERVICES KOM KST TO DETERMINE
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